and like generations before us, united states of america's going to remain the greatest force for freedom that the world has ever known. >> after a two-day swing out west, the president is back in washington today. >>> and as you heard from the president at camp pendleton, he mentioned that terror plot that closed numerous u.s. embassies. this morning authorities in yemen say they thwarted an al qaeda plot aimed directly at foreign embassies. intelligence officials say the plan was to fire missiles at embassies inside the capital. it also included attacking naval forces in the red sea. the u.s. embassy in yemen remains closed today and the country is on high alert. >>> president obama says the united states wants to help the millions of displaced syrian refugees. he's pledging an additional $1$5 million in humanitarian and food aid. that brings the total to more than $1 billion since the two-year war began. the u.n. said last month nearly seven million syrians require urgent humanitarian aid. and these images show the toll the civil war is taking on syria's largest city. these before and